baber/WOPTO huggingface dataset:
Patent JP-2003516525-A (JP)
IPC: G01N33/86
Filed: 2000-11-20
Abstract: The present application relates to a method of making liposomes having membrane proteins incorporated therein, the method comprising: providing the membrane protein in solution; providing a solution of preformed liposomes; and incubating the mixture. Prior to the step of providing a solution of preformed liposomes, the liposomes are formed by combining a mixture of phospholipids with a solution of at least one type of unsaturated fatty acid. The methods of the present invention further relate to the method of making a reagent comprising tissue factor reconstituted into preformed liposomes. The method of the present invention for making a tissue factor reagent comprises: providing tissue factor in solution; providing a solution of preformed liposomes comprising a mixture of phospholipids and at least one type of unsaturated fatty acid; and incubating the mixture.
Patent JP-2003518310-A (JP)
Title: 時系列データベースにおけるウィンドウ構成の際に双対性を用いたサブシーケンスマッチング方法
IPC: G06F/
Filed: 2000-12-14
Abstract: (57)【要約】
【解決手段】  ウィンドウを構成する際に双対性を用いてデータシーケンスをディスジョイントウィンドウに分割するため、多次元索引に保存する点の個数を削減し、個別点を索引に直接保存することができ、質問シーケンスを分割したスライディングウィンドウを変換した個別点により索引を検索し、質問に使用された点と索引に保存された点とを比較することによって、錯誤解答を削減して性能を向上させることができるようにするとともに、データシーケンスをディスジョイントウィンドウに分割して索引構成過程での特性抽出関数の使用を削減することによって、特性抽出関数の使用に必要なＣＰＵ演算を大幅に短縮して既存方法に比べて迅速に索引を構成することができるようにする。ウィンドウを構成する際に双対性を用いる第１過程と、前記第１過程に基づいてデータシーケンスをディスジョイントウィンドウに分割する第２過程と、前記第１過程に基づいて質問シーケンスをスライディングウィンドウに分割する第３過程と、前記第２過程と第３過程とで分割されたウィンドウを用いてサブシーケンスマッチングを行なう第４過程とを含む。
Patent JP-2004500178-A (JP)
Title: 膣用鉗子
IPC: A61B1/32
Filed: 2000-12-22
Abstract: 【課題】 【解決手段】膣（２５）のような体腔内を診査するための鉗子（１）は、体腔（２５）内に挿入され得るスプーンブレードを有する少なくとも２つのスプーン（３、４）を有する。これらスプーンブレードは、回動ピン（７）を介して互いに取着され、スプーンブレードが基本的に互いに接触されている閉位置と、スプーンブレードが幾分離れている開位置との間で回動される。鉗子はまた、少なくとも１つの操作ハンドル（５）を有し、この操作ハンドルは、使用中は体腔（２５）の外部に位置する。また、ボディレストが、操作ハンドルと共にスプーンブレードを広げさせる。
Patent JP-2003518433-A (JP)
IPC: B01F23/10
Filed: 2000-12-22
Abstract: A process and an apparatus for producing a homogeneous mixture of a gaseous aromatic hydrocarbon and an oxygen-containing gas for catalytic gas-phase reactions, in particular a homogeneous mixture of gaseous o-xylene and/or naphthalene and air for preparing phthalic anhydride, are provided. The liquid aromatic hydrocarbon is atomized to form droplets having a diameter of less than 1 mm and injected into an oxygen-containing gas stream (12) preheated to above the boiling point of the aromatic hydrocarbon. According to the invention, the liquid aromatic hydrocarbon is atomized by means of nozzles (15) which form a hollow cone (16), preferably by means of swirl nozzles. The o-xylene/air mixture is advantageously produced in a chamber which is bounded by side walls (18) heated to above the boiling point of the hydrocarbon.
Patent JP-2003519039-A (JP)
Title: 体積流およびエネルギー流のための、３次元的に配置された導体構造および接続構造の製造方法
IPC: B29C67/00
Filed: 2000-12-08
Abstract: (57)【要約】
本発明は、体積流およびエネルギー流のための、３次元的に配置された導体構造および接続構造を製造する方法に関する。さまざまな光硬化材料が層の製造に使用される。材料の交換の際に、先行する硬化プロセスにおいて硬化が生じなかった層の領域が新たな材料で充填され、これにより、後続の硬化プロセスにおいて、最上層がそのすぐ下の層と接続されるだけでなく、最上層の材料が最後から２番目の層の下にある層の材料とも接続される。これにより、層の列の内部において、異なる特性を有する構造を互いに接続することができる。
Patent JP-2003520649-A (JP)
Title: 針保護装置
IPC: A61M5/158
Filed: 2000-12-11
Abstract: (57)【要約】
本発明は針保護器２’を有する皮下注射器１の針保護装置２に関する。皮下注射器１には容器１０と、ロッド１１から往復運動を与えられる容器内プランジャ１２と、容器の一方の端部に固定または取り外し可能に取り付けられた針１４とが含まれる。容器と反対側の針保護器２’の端部には筒の断面に渡ってシール膜２ｂを設ける。針保護器２’は使用前の第１の別の位置１００と、使用後の第２の別のロック位置２００とが設定される。
Patent JP-2003520844-A (JP)
IPC: C07B61/00
Filed: 2001-01-24
Abstract: The invention relates to a method for producing <i>N</i>-alkoxy-<i>N</i>-alkylamides of general formula (I), wherein R<1> represents C1-10 alkyl, cyclo-C5-7 alkyl, cyclo-C5-7 alkenyl, C2-10 alkenyl, aryl, aryl C1-3 alkyl, heteroaryl, heteroaryl C1-3 alkyl or heterocyclyl; and R2 represents C1-6 alkyl. The inventive compounds are characterized in that an ester of general formula (II): R<1>COOR<3>, wherein R<1> has the above-mentioned meaning, and R<3> represents C1-6 alkyl, 4-nitrophenyl, 2,4-dinitrophenyl, succinimido or benzotriazole-1-yl, is reacted with hydroxylamine, a hydroxylamine derivative or with a hydroxylammonium salt, and the reaction product is alkylated in the presence of a phase transfer catalyst.
Patent JP-2003524502-A (JP)
Title: 固定支持部を備える眼内レンズ
IPC: A61F2/16
Filed: 2001-02-28
Abstract: (57)【要約】
【課題】  網膜剥離および類嚢胞黄斑浮腫である白内障手術の最も重篤な合併症の実質的に低い確率を伴う硝子体の安定化を含む一定の長所を提供すること。
【解決手段】  移植後に自然水晶体嚢内にレンズを固定するための特色をレンズの外端（５４、１１４、１３６、１２８）もしくは外側部分上に有するヒトの眼の自然水晶体嚢内に移植するための眼内レンズ。
Patent JP-2003528106-A (JP)
Title: Ｐｔｐ−１ｂ阻害薬としての硫黄置換アリールジフルオロメチルホスホン酸類
IPC: C07F9/553
Filed: 2001-03-21
Abstract: (57)【要約】
本発明は、ＰＴＰ−１Ｂ酵素の阻害薬である式（Ｉ）によって表される新規な種類の化合物を包含する。本発明はさらに、糖尿病などのＰＴＰ−１Ｂ介在疾患を治療または予防するための医薬組成物および方法をも包含するものである。
【化１】
Patent JP-2004501383-A (JP)
Title: 光ファイバプラグインコネクタ用複式コネクタ
IPC: G02B6/36
Filed: 2001-03-21
Abstract: 本発明は、光ファイバコネクタ用の複式プラグインコネクタに関するものであり、この複式プラグインコネクタは、２個の単一プラグインコネクタ（１４）を収容して複式プラグインコネクタ（２２）を形成するための２個の固定装置を有し、これら固定装置は、収容すべきプラグインコネクタ（１４）のコネクタハウジング（１８）及び／又はねじれ防止部（１７）を少なくとも部分的に包囲するよう設計する。
Patent JP-2003531662-A (JP)
Title: 外科用洗浄装置
IPC: A61B19/00
Filed: 2000-05-04
Abstract: (57)【要約】
スポンジ（２０）が接続された強固なハウジング（１０）を有する外科用洗浄装置が開示されていて、ハウジングは液体用の少なくとも１つの容器を形成し、容器は封止可能な開口部を有している。
Patent JP-2003531879-A (JP)
Title: ２−アルキル−３−クロロフェノール類の製造方法
IPC: C07C43/225
Filed: 2001-04-23
Abstract: (57)【要約】
本発明は、一般式（II）の化合物から式（Ｉ）［式中、ＲはＣ１−Ｃ６を表す］の２−アルキル−３−クロロフェノール類を製造するための新規な方法に関する。
【化１】
Patent JP-2003075808-A (JP)
Title: Liquid crystal display and its manufacturing method
Inventor: INOUE KAZUO
IPC: G02F1/139
Filed: 2002-01-07
Abstract: PROBLEM TO BE SOLVED: To efficiently manufacture a liquid crystal display which has a variety of projections with different heights at desired exact positions. SOLUTION: The liquid crystal display has a pair of substrates (1, 2) provided with electrodes (13, 5), respectively, and a liquid crystal layer sandwiched by the pair of substrates (1, 2), wherein one of the pair of substrates (1, 2) has at least two kinds of projections (20, 21) with different heights made of the same material. These projections (20, 21) are obtained by the step of forming a projection resin film made of a photosensitive resin and the step of forming projections for simultaneously forming at least two kinds of the projections (20, 21) with different heights on the substrate (2) by exposure and development with a photomask having distribution in light transmittance so that a distribution may occur in the residual thickness of the projection resin film.
Patent JP-2003203090-A (JP)
Title: Image space displaying method
Inventor: IWASAKI MASAJIRO
IPC: G06T3/40
Filed: 2002-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image space displaying method capable of improving the visual efficiency.  <P>SOLUTION: In this image space displaying method for visualizing a feature value space of a large amount of images on the basis of a plurality of feature values extracted from an image, very similar images are grouped, and an image plane of the feature value is created from an image representing the image group. The grouping is performed by comparing the feature value between the images obtained by the feature value extraction processing on the basis of a distance function, and the image is grouped as the similar image when the feature value is smaller than a predetermined similar image distinguishing threshold value. As a result, all of the images can belong to one of the image groups, and the image group of only a representative image may be formed even when the similar image does not exist.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003206540-A (JP)
Title: Construction method of multistage submerged timbering
Inventor: YUZUGUCHI YASUHARU
IPC: E02D27/32
Filed: 2002-01-15
Abstract: <P>PROBLEM TO BE SOLVED: To largely shorten a construction period of multistage timbering, to reduce a cost, and to obtain accuracy, a speed, and safety of work for installing the timbering in a sheet pile well foundation construction method.  <P>SOLUTION: This method constructs a foundation lower part of a bridge by the sheet pile well foundation construction method. The construction period is shortened by excavating while replacing water and sediment in a well in an excavating process. A bracket for arranging second stage timbering on the inner peripheral side of a sheet pile is constituted as a collapsible bracket. A flat bar is fixed to a sheet pile inner peripheral side curved surface top surface, and a suspending bracket for arranging third stage timbering is fixed to the lower end. After tentatively assembling the third stage timbering by the collapsible bracket, the timbering is suspended by a suspending tool, the collapsible bracket is folded up, and the third stage timbering is slid downward and immersed, and is placed, assembled, and installed on the suspending bracket. Afterwards, the collapsible bracket is restored to a present state, and the second stage timbering is placed, tentatively assembled, and installed on the bracket.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003205541-A (JP)
Title: Injection device
Inventor: RIYUU IKUKIYOU
IPC: B29C45/74
Filed: 2002-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide an occurrence of stringiness, and to prevent degradation, scorch, discoloration or the like of a molding material in an injection nozzle, a hating cylinder and the like.  <P>SOLUTION: An injection device is equipped with a cylinder member, an injection member arranged movablly back and forth inside the cylinder member, an injection nozzle 13 attached to the front end of the cylinder member, heat conductive members 41 to 43 comprising heat conductive materials and being detachably arranged on the periphery of the injection nozzle 13 and a heater h5 arranged on the periphery of the heat conductive members 41 to 43. A solidifying speed of the molding material in the injection nozzle 13 can be adjusted according to the molding material used, by changing the heat conductive members 41 to 43 so as to change the quantity of heat transmitted between the heater h5 and the injection nozzle 13. Also, the temperature of the molding material inside the cylinder member can be made high enough because a preset temperature is not necessary to be controlled to low in temperature control.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003219136-A (JP)
Title: Image communication apparatus
Inventor: ICHINOTO YASUO
IPC: H04N1/00
Filed: 2002-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a facsimile apparatus capable of grasping a communication third-party, an object or the like according to a tone or a sound volume of a buzzer sound rumbled at a receiving operation ending time.  <P>SOLUTION: The facsimile apparatus comprises a conveying scanner 1, an image processing unit 2, a modem 3, a printer 4, a channel connecting unit 5, a control panel 6, a controller 7, voice signal generator 8, a speaker 9 and a storage unit 10. The storage unit 10 stores communication third-party information. The controller 7 controls the speaker 9 via the generator 8 according to the third-party information at a facsimile reception ending time, and rumbles the buzzer sound intrinsic for each communication third-party.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003215102-A (JP)
Title: Exhaust gas measuring device and standard sample generator
Inventor: TACHIBANA KOJI
IPC: G01N1/22
Filed: 2002-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide an exhaust gas measuring device which continuously measure chlorophenols, chlorobenzenes or the like contained in an exhaust gas by freely changing a substance to be measured while the exhaust gas is continuously introduced.  <P>SOLUTION: A condition setting section 12 is provided according to substances to be measured in an exhaust gas. When a substance to be measured switched, a condition changing section 14 changes temperatures and flow rates of individual apparatuses in a pretreatment section 200, and conditions of mass analysis control, data processing, concentration calculation processing, and output processing in a mass analyzer section 100. After a certain period in which the changed measurement conditions set in a switching timer 16 become stable, the device starts to measure.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003219571-A (JP)
Title: Charging method, storage battery system, and air- conditioning system
Inventor: OTSUKA KEISUKE
IPC: H02J7/02
Filed: 2002-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a charging method for lead storage battery, wherein a lead storage battery is less prone to being brought into heavy discharge state and the capacity is less prone to lowering.  <P>SOLUTION: First charging is adopted, wherein a lead storage battery is charged with a usage-based amount of charging obtained, by multiplying the amount of discharging carried out after the previous charging by a predetermined coefficient X. If the first charging is successively adopted in charging the lead storage battery, the predetermined coefficient X is updated with a value, which is increased with increase in an integrated value ΣP of the amount of discharge.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003218465-A (JP)
Title: Stripe waveguide structure type semiconductor laser device and method of manufacturing the same
Inventor: OBUCHI SHUZO
IPC: H01S5/32
Filed: 2002-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a stripe waveguide structure type semiconductor laser device capable of preventing the generation of the irregularity on side faces of a channel, and also to provide a method of manufacturing the same.  <P>SOLUTION: Under a second upper clad layer 2, an etching stop layer 1 is formed. The etching stop layer 1 comprises a GaAs layer 1a, an Al<SB>0.5</SB>Ga<SB>0.5</SB>As layer 1b formed under the GaAs layer 1a, and a GaAs layer 1c formed under the Al<SB>0.5</SB>Ga<SB>0.5</SB>As layer 1b. Due to this structure, the irregularity on the side faces of the channel formed by the GaAs layer 3 and the second upper clad layer 2 can be controlled.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003211725-A (JP)
Title: Imaging apparatus
Inventor: YOKOTA TAKAHIRO
IPC: G03G15/00
Filed: 2002-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide an imaging apparatus in which shift of an image due to shift from an LED head in the subscanning direction can be prevented even when a speed variation of rotational period is present in a power transmission gear for rotary driving a photosensitive body.  <P>SOLUTION: Assuming the distance between a first LED head 31 and a second LED head 32 in the subscanning direction is L, the circumference P of the pitch circle of a power transmission gear 10 is set such that the distance L is equal to n (n=1, 2, 3,...) times of the moving distance of the surface of a photosensitive body 1 corresponding to the circumference P.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003216503-A (JP)
Title: Data communication system
Inventor: SAITO YUJI
IPC: G06Q30/04
Filed: 2002-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To protect a benefit of a copyright holder by allowing a proper holder alone to reproduce contents.  <P>SOLUTION: This data communication system receives contents data D comprising a header part H and a contents part C and storing a user ID, or the holder of a contents part C, from another terminal device 30, stores them in a memory 33, transmits the header part H out of the contents data D stored in the memory 33 to a sever device 10, receives the transmitted header part H, updates the user ID, or a former holder of the received header part H, to a user ID of a new holder, transmits the updated header part H to the terminal device 30, receives the transmitted header part H, and allows the reproduction of the contents part C of the contents data D having the updated header part H, only when the header part H is updated.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003212455-A (JP)
Title: Display control device of elevator
Inventor: SAKATA YOSHIKI
IPC: B66B11/02
Filed: 2002-01-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a display control device capable of the efficient display.  <P>SOLUTION: The display control device comprises an elevator car weight detecting means, that is a micro-switch type scale 3, for detecting the weight in an elevator car 1, and a stopping means for stopping the display of a display device 2 according to the detection of the weight of a prescribed value or lower by the elevator car weight detecting means, that is a normally open contact point 3a disposed between the display device 2 and a power source device 4. When a passenger gets off the elevator car 2 and the micro-switch type scale 3 detects the weight inside the car is lighter than 10 kg, the normally open contact point 3a is opened and the power supply from the power source device 4 is cut off so that the display of the display device 2 is stopped. As a result, the life of the display device can be extended and the energy consumption can be reduced.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003213372-A (JP)
Title: Steel wire for spring and spring
Inventor: ISHIHARA TORU
IPC: C22C38/00
Filed: 2002-01-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a steel wire for a spring in which the fatigue resistance of the material itself is improved without addition of expensive elements and expensive treatment, to provide a production method therefor and a spring.  <P>SOLUTION: The steel wire for a spring contains, by mass, 0.50 to 0.90% C, 1.0 to 3.0% Si, 0.5 to 1.5% Mn and 0.1 to 5.0% Cr, and has a metallic structure mainly consisting of tempered martensite. The old austenite grain size (JIS G 0551) of tempered martensite is #11 to 15, and the maximum grain size is ≤8 μm. By the refining of the grain size, the density of the grain boundaries is increased, so that the strength of the material itself is improved, and its fatigue resistance is improved.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003221800-A (JP)
Title: Inorganic board and method of producing the same
Inventor: MORISHITA SHIGERU
IPC: D21H17/48
Filed: 2002-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide an inorganic board that can reduce the environmental loading and provide a method of producing the same.  <P>SOLUTION: The inorganic board comprises inorganic fiber, inorganic powder and a binder as essential components and is single-ply or multi-ply. Novolak type phenol resin is used as a binder and a preliminarily emulsified isocyanate group-including adhesive is used as a curing agent.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003220938-A (JP)
Title: Rotation detector for wheel
Inventor: AOKI MAMORU
IPC: F16C19/18
Filed: 2002-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To realize a structure that detects a rotating speed of a wheel and can accurately detect an axial slip of the wheel on a road surface from an early stage.  <P>SOLUTION: A holder 25 constituting a sensor unit 21 houses a rotation detecting sensor and a vibration sensor. The vibration sensor detects an axial slip of a wheel on a road surface. This can accurately detect an axial slip of the wheel from an earlier stage than the arrangement of an acceleration sensor for detecting a slip on a vehicle body.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003224301-A (JP)
Title: Light-transmitting covering material for light-emitting diode and color light source
Inventor: ICHIKAWA AKIRA
IPC: H01L33/50
Filed: 2002-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a light-transmitting covering material for a light-emitting diode containing dyestuffs or a pigment having different absorption factors to beams from the light-emitting diode on the long wavelength side and the short wavelength side in a wavelength region emitted from the light-emitting diode in the light-transmitting covering material mounted on the light-emitting diode and a color light source, to which the light-transmitting covering material for the diode is installed.  <P>SOLUTION: Dominant wavelengths from various LEDs can be controlled easily and surely while luminance can also be controlled.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003127598-A (JP)
Title: Patterned metallic plate and manufacturing method thereof
Inventor: MIYAZAKI TAKESHI
IPC: G02B5/18
Filed: 2002-02-05
Abstract: PROBLEM TO BE SOLVED: To provide a patterned metallic plate which can exhibit design of various kinds of fine uneven patterns while making use of a gloss of a relatively hard metallic plate and a manufacturing method of the plate. SOLUTION: A titanium plate 2 is passed with pressing force applied through a slit between a first roll 3 with a metallic plate made of nickel having fine uneven patterns 3a applied to its surface and a second roll 4 having a smooth surface, so as to transfer uneven patterns 2a onto the surface of the titanium plate 2. Since an elastic material is provided between the metallic plate with the uneven patterns 3a applied and the first roll 3, a pressure is uniformly applied and the patterns are transferred uniformly on the entire titanium plate 2. The titanium plate 2 with the patterns 2a transferred is pressed to provide a patterned metallic plate 1 as a final product. A surface of the metallic plate 1 is subjected to an oxidation treatment.  Thus the excellent patterned metallic plate 1 is obtained, which exhibits effects such as antibacterial and deodorant effects by titanium oxide and self-cleaning effects by hydrophilicity and does not cause an allergy to metals.
Patent JP-2003229967-A (JP)
Title: Intercom system with built-in cd changer
Inventor: NISHINOSONO KAZUO
IPC: H04M9/00
Filed: 2002-02-05
Abstract: <P>PROBLEM TO BE SOLVED: To expand the selection width of BGM sound sources and to realize easiness in BGM selection operability in a simple configuration in an intercom system provided with a BGM function.  <P>SOLUTION: A CD changer 70 is incorporated in a base unit 1 and operated from the side of a handset 2 to widen the width of BGM sound source selection. Besides, LED indicator lamps L1, L2 and L3 presenting CD states are provided to facilitate the operation on the side of the handset 2 based on visual confirmation. Further, an instruction signal for the channel selection and music selection for the BGM is produced by a plurality of kinds of pressing states composed of the pressing time and pressing timing of a BGM button B3 and this signal is sent to the base unit 1 by one signal line while being shared with the other signal adding a difference to a voltage level. Besides, the signal line for sending the CD state signal to the handset 2 is shared with the signal line of the other signal to be sent from the base unit 1 to the handset 2 such that a function can be added by a little alteration to the handset.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003172888-A (JP)
Title: Display device
Inventor: KIMURA MITSUTERU
IPC: G02B26/08
Filed: 2002-02-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide a low-voltage driven and low-power-consumption display device which is characterized by that a movable thin film as a pixel operates fast and can stably and securely come into contact with an optical waveguide even if its displacement quantity is large and slight foreign matter is present to make a display of stable illuminance, as a contacting/separating type electrostatically driven display device.  <P>SOLUTION: The movable thin film which is soft, almost as thick as object foreign matter, and transparent is used as a contact part for the optical waveguide and an electrode which attracts the movable thin film and an electrode which separates the movable thin film are provided; and a light leak quantity is controlled by adjusting voltages applied thereto and an end part of the movable thin film is joined to make the angle formed by those attraction electrodes small, thereby enabling low-voltage driving.  <P>COPYRIGHT: (C)2003,JPO